Yeah, I wonder. I might go off it.
I find Asian women quite attractive, and I don't mean just the ones I see in porn; also the ones I see in my town (internationally-known capital with several universities, so many foreign students and expats here). But at the same time I think that attraction or fetish may be exaggerated by the very fact that these women (the ones in porn especially) are distant, unattainable and alien, and therefore perfect vehicles for fantasy.
If I was to live in Japan, being exposed to real Japanese women all the time, I would see their "type" as real people, and that might break the spell a bit. Dunno. It's not like I don't know pornstars are people too, but when consuming porn that realisation does not come into play.
I like to watch Japanese cinema, modern stuff but also classics like Ozu, Naruse or Kurosawa, and I find that this also fills me with duality at times. I might jerk off to some depraved gokkun scene one day and watch a beautiful humanistic Japanese film the next, like two sides of the "Japan" coin in my pocket...